Several prospects are visiting Murphy Canyon this week. While the exact total is not known — the team doesn't disclose its 30 allotted pre-draft visits — the group Wednesday included former Indiana wide receiver Cody Latimer and Montana inside linebacker Brock Coyle, sources said.

On Tuesday, former Illinois State outside linebacker Colton Underwood stopped by Chargers Park.

At this stage in draft preparation, the Chargers have a very strong sense of player grades. Game film hasn't changed in months. Measurable data, like 40-yard dash times, from the NFL Scouting Combine and pro days is logged. Any "rising" or "falling" documented in media is more indicative of reporters gaining a better sense of what teams think about a player, not the actual team opinion changing.

Of the group, Latimer is expected to be the highest draft pick. He began the pre-draft process as a projected third-round choice. Steadily, the 6-foot-2 target has built the case to be selected earlier in a deep wide receiver class.

Some draft analysts have linked him to the May 8 first round.

Underwood and Crichton played defensive end in 2013. Both project to outside linebacker in a 3-4 scheme. Crichton, more in the Jarret Johnson mold, measured at 6-foot-3 and 273 pounds at the combine. Underwood is listed at 6-foot-3 and 255 pounds.